Atomizer



(No Model.) 1 W. 8v J. BOEKEL.

ATOMIZBR. z No. 595,759. Patented Deo; 21,1897.

mw@ 2 fj UNITED STATES PATENT vOFFICE.

WILLIAM BOEKEL AND J ULIUS BOEKEL, OF PHILADELPHIA, PENNSYLVANIA.

ATOIVIIZER.

SPECIFICATION `forming part of Letters Patent No. 595,759, dated December 21, 1897.

Application led July 29, 189 7. Serial No; 646,307. (No model.)

To @ZZ whom, it may concern:

Be it known that We,W1LLIAM BOEKEL and JULIUs BOEKEL, citizens of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Cut-Offs for Atomizers; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appert-ains to make and use the same.

This invention relates to the cut-off valves of atomizers or sprayers which discharge air into the outlet-passage of a receptacle for liquid, thereby forcing this liquid out with the air in a ne spray through a common discharge-nozzle. In practice after the iiow of air has been cut off a certain amount of airpressure continues briefly in the liquid-receptacle, often causing an inconvenient prolongation of the spraying after the nozzle of the atomizer has been Withdrawn from the mouth or other part wherethe spray has been applied. i To obviate this evil, a vent has sometimes been made transversely through the plug and through the casing thereof at a point necessarily near the outletpassage; but with such a construction there is during the normal operation of the atomizer a chance of leakage at three points-mamely, at the two ends of the bore in which the plug turns and through the additional hole for the vent. It becomes important to lessen the number of these apertures,and especially to do away with the one which is most likely to cause a leak by reason of its proximity to the outlet which supplies the air-nozzle. To this end we make the ventpassage of the plug a longitudinal groove extending from end to end thereof and discharging into the outer air at these ends, With no need for any additional aperture in the casing.

In the accompanying drawings, Figure l represents a side elevation of an atomizer elnbodying our invention. Fig. 2 represents a Vertical section of the cut-ol, its casing, and proximate parts; and Fig. 3 represents a detail perspective view of the same, the rotary plug being shown detached.

A designates the medicine-bottle or other receptacle for the liquid to be sprayed; B, the

outlet-nozzle therefor; C, the air-nozzle discharging into the tubular lateral extension B of the upper end of said bottle D, the liquiddischarge pipe, Which extends from near the bottom of the said bottle up to the tip of the spraying-nozzle B; E, the air-pipe supplying air under pressure through the air-nozzle aforesaid; F, the casing for the rotary plug G, which acts as a cut-off to the said air-supply and has its ends iiush with the sides of the said casing; H, an operating-lever for the said plug or cut-off, mounted by arms h on studs g in the ends thereof and provided with a terminal thumb-piece H and stop h', and I a spring attached at one end to the top of the said casing and at'the other to the under side of the said lever. This spring bends over the said casing when depressed and restores the said lever to its normal position when relieved from pressure. In the side of the said plug which is toward the air-discharge nozzle C we make a groove J, running from end to end thereof and communicating with the outer air at j. Vhen the said plug is turned to cutoff the flow of air into the bottle, the said groove is in position to receive the air escaping from the said bottle and allow it to escape laterally from the atomizer Without driving any spray from the nozzle B.

The plug G fits into the usual transverse bore of the casing vtightly enough to guard against leakage at its ends. These are the only possible points of such leakage, the only other openings of said casing being the inlet and outlet for the passage of air to the nozzle. The air-vent groove or passage J is not necessarily extended to both ends of the said plug, as shown in Fig. 3, for an outlet at one end only will be operative; but the construction of the said figure and as hereinbefore described in the specification is preferable as being more easily produced and aifording more ample opening for escape.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, isy l. In combination with the air-tube, airnozzle and plug-casing of an atomizer, a rotary plug extending through the said casing and provided with a longitudinal groove or' passage that registers with the said nozzle and IOO extends through the end of the said plug making immediate connection with the outer air substantially as set forth.

2. In 4combination with the plug-easing of an atomizer having an air inlet and outlet, a plug turning in said easing and extending through itat both ends, the said plug having a longitudinal groove formed therein, Which extends through both ends of the said plug and thereby makes a double connection with the outer air, while simultaneously communicating with the outlet substantially as set forth.

3. In combination with a liquid-receptacle and a spraying-nozzle connected thereto, an air-nozzle discharging into the same, a cut-off plug for regulating the supply of air to said WVM. BOEKEL.V JULIUS BOEKEL.

Witnesses:

CARL F. LAUBER, JOHN H. SCHERER. 

